Unilateral chorda tympani nerve sectioning was combined with institution of a sodium-restricted diet in adult rats to determine the role that environment has on the functional properties of regenerating taste receptor cells. Rats receiving chorda tympani sectioning but no dietary manipulation (cut controls) and rats receiving only the dietary manipulation (diet controls) had normal responses to...

Both the World Health Organization and the International Obesity Task Force have classified the prevalence of obesity as a global epidemic. The primary causes of obesity are sedentary lifestyles and high-fat diets. Such diets are preferred due to their high palatability. Fats are broken down into free fatty acids, such as linoleic and oleic acids. In order to determine the neural pathway respon...

Lyall V, Phan T-HT, Mummalaneni S, Melone P, Mahavadi S, Murthy KS, DeSimone JA. Regulation of the benzamil-insensitive salt taste receptor by intracellular Ca , protein kinase C, and calcineurin. J Neurophysiol 102: 1591–1605, 2009. First published June 24, 2009; doi:10.1152/jn.91301.2008. The regulation of the benzamil (Bz)-insensitive salt taste receptor was investigated by intracellular Ca ...

the author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. the studies were performed on 200 specimens of human temporal bone. it was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), and ve...

The radiographic appearance of the petrotympanic fissure, through whic h the chorda tympani nerve exits the tympanic cavity, is familiar to radiologists as a normal struc ture, not to be mistaken for a frac ture of the anterior wall of the external auditory canal [1, 2). However, th e rad iographic demonstration of the canaliculus chordae tympan i, the bony canal which transmits the chorda tymp...

The author studied anatomical variations of the origin of the chorda tympani nerve from the mastoid portion of the facial nerve. The studies were performed on 200 specimens of human temporal bone. It was found that the chorda tympani may arise from the facial nerve in three levels: most commonly from the mid third of its mastoid segment (70%), less commonly from the proximal third (20%), an...

Cuff electrodes with headcap connectors were implanted around the rat chorda tympani nerve. Whole nerve recordings under anesthesia were made from these nerves every week to chemical, thermal and tactile stimuli applied to the anterior tongue. The signal/noise ratio of these recordings was similar to acute recordings from the chorda tympani nerve, and the nerves were spontaneously active. Respo...

The whole course of the chorda tympani nerve, nerve of pterygoid canal, and facial nerves and their relationships with surrounding structures are complex. After reviewing the literature, it was found that details of the whole course of these deep nerves are rarely reported and specimens displaying these nerves are rarely seen in the dissecting room, anatomical museum, or atlases. Dissections we...

Most fungiform taste buds fail to become innervated when BDNF or NT4 is overexpressed in the basal layer of tongue epithelium. Here, we examined when and how overexpression of BDNF and NT4 disrupt innervation to fungiform papillae. Overexpression of either factor disrupted chorda tympani innervation patterns either before or during the initial innervation of fungiform papillae. NT4 and BDNF ove...